Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
So... Who knows what to do to get food dye out of interior pieces...
So far I have run water through the washer bottle for close to 10 minutes... Some dick put a full bottle of red dye into it..
Generally food dye stains what it touches, get out what you can and eventually it will fade from use but the staining shouldn't have any effect